Link-Belt Gearbox Repair in Fontana

Gear shop · Link-Belt

Legacy crane and conveyor drives, reverse-engineered when required

Age writes a particular inspection list for a Link-Belt box. Crane swing drives arrive with pinion and bull-gear wear concentrated where the upper works hardest, hoist drums' reducers show banded tooth wear from a lifetime of one working zone, and conveyor reducers come in with keyways wallowed, shafts grooved at the seal and housings worn at the bearing seats after years of vibration. We record all of it - tooth measurements, backlash, bore and journal sizes, shaft condition - and quote from the findings. Gears that can no longer be bought are manufactured new from the surviving geometry, shafts are welded up and re-machined or made new, housings are restored to true bore alignment, and the assembly is set with correct backlash and contact before a test run. The aim is another working lifetime from a drive the industry wrote off. Preserving fit and interchangeability guides every decision on these units: replacement gears are cut to work with the surviving originals they mesh against wherever those originals measure sound, instead of forcing a full set the job does not need. Where a previous repair has altered a bore, a keyway or a shaft over the decades, we measure the machine as it actually is and machine to that truth, documenting every deviation in the job file so the next shop - or this one, in fifteen years - inherits knowledge instead of surprises. Cast housings are checked for the hairline cracks that old, hard-worked iron hides under paint.